Antifriction guideway for slidable vise jaws



Aug. 8, 1950 2- Sheets-Sheet 1 M/cHAeL NMD ZT E Aug. 8, 1950 M. F. WARDmrmc'rron survenu Fon snmnm vIsE .ms

una oct. a, 194s 2 SheetsSheet -2 www ./JLJVEEF" MICHAEL F. WARD 75 M MMi Patented Aus- 8, 195o yAis1'filtrarer1(iN UIDEWAY Fon SLIDABLE viseJAws f Michael F.-Wardf,..Chicago, Ill., assigner to Stude-'..bakeriMachine'Co., Maywood, 111;, a corporaapplicati@ Osterei s,1945, serialno. 620,939

'The present vinvention relates to aviseconstruction and moreparticularlyto the construction of a hydraulic visev having meansI toypractically eliminate all frictionrbetween th'evxed and movable jawmembers.

While the present invention will herein be illustrated and described asa hydraulic vise,l it is to be understood that the' improvements may beincorporated in vises, or similar machines, other than hydraulic vises.l

In the operation 'of some vvises, and particu` larly hydraulic vises, aconslderableamount of force is necessary to hold-the'movable jaw memberagainst the workpiece vwhich is'against' the fixed jaw. Where such avise isihydraulically operated, aheavy loadis imposed upontheY movablejaw member, and sometimes quite-an effort is needed to separate themovable jawmember from the work piece when thevjobis linished.

f It is, therefore, an'v important object ofafthe 'present invention toyprovide .av vise. construction f in which the movable jaw member ismounted on rthe fixed jaw member, with vantifriction means,

to enable easy operation of themovablejaw member towards and away fromthe xed jaw.

Anotherfobject of the present invention is to provide a hydraulic visehaving a ball bearing support for the movable jaw member.

yAnother object of thevpresentinvention is to provide a hydraulic visehaving ya minimum of friction between vthe movablevjpawimember and thefixed jaw member. f A still further object of the present `invention isto provide a hydraulic-vise havingcooperatingways for ball bearings andgibsgfor re- 2 Claims. (o1. S14-47.2); i

Figure 3 is a view, partially in end elevation and partially in section,taken in the plane of unevIIL-'III of Figure 1.

Figure 4' is a top plan view of the vise of Fig- Aure 1. l f

The drawing will now be explained.

Referring to' Figure 1, a vise is illustrated including 'a xedjawmemberA and a movable jaw member B. The fixed jaw member A has anelongated body having feet 5 and 6 for resting ony a" surface, such as abench, and an upwardly and inwardly turned end 1 providing a fixed jaw8. The face ofthe jaw 8 has a hardened plate insert 9, retained bysuitable screws.

The foot 5 has an end extension II slotted at iZwto receivev a lag screwor bolt for securing this -end'of the vise to a support. The feet 6,which taining the balls within the length ofthe mov- 'f able jaw member.

Another and yet further object of the `present invention is to provideyavise construction -.in whichthe movable jawmember is supported on thefixed jaw memberby ballwbearings, which` bearings support the entireweight of the,mo v able jaw member.

The invention has for a further object the provision of a. practicallyfrictionless vise construction.

The above, other and further objects of the present invention will beapparent from the following description and accompanying drawings.

An embodiment of the present invention is illustrated in theaccompanying drawing and the views thereof are as follows:

Figure l is a side elevational view of a hydraulic jack embodying thepresent invention.

Figure 2 is a vertical sectional View taken in the plane of line II-IIof Figure 1.

extend laterally ofthe xed member A. as shown fin Figure 4', areprovided with similar slots I3 for a similar purpose. l

Set into the upper portion of the fixed mem berA is 'a plate I4horizontally disposed and fastened in place by suitable bolts I5. Theplate I-4 is horizontally disposed with a horizontal -upper surfaceIlj.v Side margins I' and I 8,of the plate vI4 are vertical and eachhasformed in it a lengthwise extending semi-cylindricall groove I9 and210;" respectively. The grooves being formed with their'diameters in thevertical faces .or margins of theside surfaces of the plate I4.

The jmovable jaw member B has an end portion 2| constituting a movablejaw, which portion vis provided'with ahardened plate 22held in place bysuitable screws.l I y As `maybejobserved in Figure y2, the movablejawmember B straddlesthe plate I 4 of the fixed jaw member.

Attached' to opposite sides of the movable yjaw .member-B are plates 23and 24 held in place by suitablescrews or bolts 25. i laptheside.margins of the platey I4 of the ,fixedmember A.. `The inner faces ofthe plates 23 The plates 23 and and 24 are formed with lengthwiseextending grooves 26 and 21, respectively, the grooves 26 and 21 in theside plates complementing the grooves I1 and I8 in the side margins inthe plate I4 to provide ball bearing ways, or race-ways, for receivingball bearings 28. It will be observed, in Figure 2, that the entireweight of the movable jaw member B is carried by the ball bearings 28 toreduce friction to a minimum.

The balls 28 are retained in the ways within the length of the movablejaw member B by means of gibs 29 and 30 applied to the ends of the sideplates 23 and 24 of the movable jaw member, which plates are recessed at3 I to stradmember, adjacent the jaw 2| of the same, to nors mallywithdraw the movable j aw member B from the jaw 8 of the xed memberfA.

A ram 36 entered in the movable jaw member B is positioned therein tomoveethejawmemher to the right, as viewed in Figuresl andli', whenk everhydraulic pressure is applied to it.

Hydraulic pressure is applied. to .the ram 3.6 by` connection of asuitable source of 'pressure to the adapter or coupling, indicatedgenerallyratiaii It is to be understood that the movable jaW member. is`movedtoward the xedljaw.- member by. hydraulic pressure applied tor therams 3.6, which pressure is regulated by f a suitable? valve, usuallyactuated by a treadleengageable-by a foot of the vise operator. Themovable jaw member is moved against a work piece-to clamp it'between`the fixed jaw and.- rnovable jawby'hy draulic pressure, and heldaslong'asis necessary for the operator todo anythingfontheworkpiece.

When work-has been nis-l'iedy .pressureagainstl the ram 3Bis. relieved,whereupon theA spring.` 3.3 functionsfto withdraw the movable jawy fromthe `xed jaw and'release the Work: piece-theretofore held between thesame'.

It; willbe evident' that .the ball; bearing mounting of` the-movablemember B on the-Xed mem- .berf A, in the-.manner illustrated and.described, reducesv friction to a minimum*- and. all of* the weight ofthe movable jaw member: is carried on and supported by the balls 28ofgathetball-bearings.

The ball bearing grooves 11,. I8?, 2,6f 'and'.Zl, heretofore described,were described as each-being` semi-cylindrical.. In actual. practice'these grooves, when brought together to formball receiving Ways,are'slightly less than trulyy semicylindrical, to enable the confrontingfaces; of

the platesy 23 and 2,4 in the side margins' ofv the plate," I4 to beseparated a slight distance; to prevent any bindingV between..- the:`movable jaw member-and the fixed jawV member.

It will be observedy that the vise construction herein disclosed is onewhich Willienablethemanufacture of a practically frictionlessvise, atminimum cost, as the parts are simple, and of such nature as tobereadily formed'andmachined, as Well as assembled, in an expeditiousmanner.

A second spring 33a is shown as parallel to spring 33. The spring 33a ishooked at; oneend to a projection 34a on the left-hand ofmember A. Theother end of the spring is'hookedover a projection 35a in the movablejaw member; adjacent the jaw 2l of the same, to cooperate-with 4 spring33 to withdraw the movable jaw member B from the xed jaw 8.

A screw 38 is threaded into the end piece 39 of member A to serve as a.stop for retrograde movement of the movable jaw member B under iniluenceof springs 33 and 33m Thexinvention has herein been described more orless precisely as to details, yet it is to be understood that theinvention is not to be limited thereby. .as changes may be made in thearrangement;v and proportion of parts, and equivalents may besubstituted, without departing from the function'l and scope of theinvention.

Thevinvention` claimed as follows:

l. hydraulic` vise comprising an elongated basefmember. supporting a xedjaw, a plate fastened flatwise to said base and having verticalside-margins, a movable jaw member, said movable jaw member having sideplates lapping the vertical#sidefedges:offsaidg-rstl plate, ythevertical siden edges-.of saidfirst plate andfthefconfronting faces ofsaid'plateswhaving complemental-grooves formed! in` them constituting.;yball, bearing..r Ways adjacent the opposite1 marginal portions.v of.'the ballbearingsinsa-id ways.. and meansconning; the balls-withinthe-lengths ofthe saidzside plates-,theconstructon being such that theentire weight of; the movable jaw member is ysupported solely by saidballs.

2; A hydraulic vised comprising an elongated baseamembensupportingafixed jaw, a. horizontaily,W disposed` plate fastened to. said. baseland havingV side' margins,- each of saidf sidel margins having a:lengthwise extending, semi-cylindrical groove; formed! .in it with. thediameter of,` the groove vertical, a movable jaw member, side platessecuredtb-Lsaid movable :jaw member., each of said side platesfhaving alengthwise'semi-cylindrical.. groove: inzits=inner face to complementthead-jacent?. groove in' said.v base plate to-form ball raceways,ballczbearingsinsaidmaceways con.. fined withinv thelengthf of' said.side plates, and gibsf conning said* balls: to. said= movable jawmember: Y

MICHAEL F. WARD.

REEFREN@ES.A GITED The following references are' of record in' the fileof this patent:

UNITED STATES PATENTS Number NameV Date 811,456' Thurston Jan. 3U, 190'61,009,970 Hyle Nov. 2'8, 1911 1,394,392 Zavagno Oct. l8r, 1921 1,411,013Gilmore Mar. 28; 1922 15430,'226 Goodreau Sept. 26,'- 1922 2,278,254Enghauser Mar. 3l", 1942 2,289,597" Seat July 14, 1942 2,343,575 PenneyMar. 7, 1.944 2;400,'374. Selnes May 14, 1946

